Jacquard mechanism for looms



{No Model.)

H.-HARDWIOK. JAGQUARD MEOHANISM FOR LOOMS.

No. 592,005. Patented Oct. 19,1897.

Invent o r. M

Atto

HARRY HARDWIOK, OF PHILADELPHIA, PENNSYLVANIA.

JACQUARD MECHANISM FOR LOOJlViS.

SPECIFICATION forming part of Letters Patent No.'592,005, dated October 19, 1897.

Application filed lTanuary 21, 1897 Serial No 620,028. (Ilo model.)

To all whom itmrty concern.-

Be it known that I, HARRY HARDWIOK, a citizen of the United States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented anew and useful Improvement in J acquard Mechanism for Looms, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates particularly to certain improvements appertaining to the liftingcord board, a spring, one end connected with the cord, the free end resting againstthe supplemental board. So far as the lingo band is concerned, I remove the lingos ,or weights now used and substitute a spring, one end of which is attached to the lingo band, the other end either free and restingfagainst a frame connected to and moving with the journal, or is connected to a frame moving with the journal. 7

I will first describe the embodiment of my invention illustrated. in the accompanying drawings and then particularly point out the invention in the claims.

In the drawings, Figure 1 is a perspective view of part of the harness of a loom. Fig. 2 is a similar view in section. Fig. 3 is a detail View of a modified'arrange'ment of spring.

Ais the top board; B, the lifter-board, having the orifices b, as in the ordinary jacquard of that type. Y

O are the needles; D, the lifting cords, which are connected at their lower ends to the leashes d, each leash passing through an orifice in the journals K and is connected with a mail E, through the eye 6 of which the warp passes. A knot is on the leashes above the board B is the supplemental board I-I, through an orifice in which the cord D passes.

I are springs corresponding in number to the cords D, and each cord has a spring one end of which is connected to the cord, the other free and resting against the board I-I. As shown, these springs I are spiral springs and surround the cords.

The weight of the board puts sufficient pressure upon the spring to cause it to exercise sufficient tension on the cord to enable the cord to be held properly to be acted on by the needles and the lifting-board, the action of the needles being to bring the knot d on the cord either inline with the circular portion or said saw-cut portion of orifice ,b. The lifter-board lifts those cords whose knots are in line with said saw-cut portion of orifice and pass beyond thosewhose knots are in line with the circular-portion.

The board H lifting with the lifter-board prevents too great an extent of tension being put upon the cords which lift. By this arrangement the pr oper tension can be put upon the lifting cords Without causing the wear due to chafing and other causes where weights are used.

J are the lingo bands, connected with the mails E. Ordinarily lingoes or weights are connected to these lingobands. Y In place of these I provide frames K K, secured to and moving with the journal K Through orifices in the frames K K pass the lingo bands J.

' L are springs, one'for each lingo band,

which surround the lingo band and have one end connected to the lingo band, the other "resting against the frame K (see Fig. 1) or be maintained on its corresponding warp. lVhen the lingo band is down, the proper tension is kept on the warp.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a Jacquard mechanism, in combination, with the lifter-board and the liftingcords, of a supplemental board connected to and moving with the lifter-board provided with orifices through which the lifting-cords pass, springs connected with the lifting-cords and rendered active by said supplemental board.

2. In a Jacquard mechanism, in combination with the lifter-board and the lifting-cord, of a spring connected with the lifting-cord, and a device connected to and moving with the lifter-board adapted to render said spring active.

3. In combination with the lifting-cord of a Jacquard mechanism and connection therewith with the warp, of a lingo band connected with the warp, a journal for operating the warp, frames as K, K, secured to and moving with the journals, there being orifices in said frames through which the lingo bands pass, springs equal in number to the lingo bands and interposed between said frames K, K

4. In combination with the lifter-board and the lifting-cords of a Jacquard mechanism, of connection between the cords and the warp, a supplemental board connected to and moving with the lifting-board provided with orifices through which the lifting-cords pass, springs connected with the lifting-cords and rendered active by said supplemental board, a lingo band connected with the warp, a spring one end connected with the lingo band, and means to render said spring active and maintain it active during the movement of the warp by the lifting-cord.

In testimony of which invention I have hereunto set my hand.

IIARRY HARDVVICK.

\Vitnesses:

M. F. ELLIS, CAROL H. DESHONG. 

